65066249 has 2 divisors, whose sum is σ = 65066250. Its totient is φ = 65066248.

The previous prime is 65066219. The next prime is 65066257. The reversal of 65066249 is 94266056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48720400 + 16345849 = 6980^2 + 4043^2 .

It is a cyclic number.

It is not a de Polignac number, because 65066249 - 2²⁰ = 64017673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65066219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32533124 + 32533125.

It is an arithmetic number, because the mean of its divisors is an integer number (32533125).

Almost surely, 2^65066249 is an apocalyptic number.

It is an amenable number.

65066249 is a deficient number, since it is larger than the sum of its proper divisors (1).

65066249 is an equidigital number, since it uses as much as digits as its factorization.

65066249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 65066249 is about 8066.3652905134. The cubic root of 65066249 is about 402.2091289954.

The spelling of 65066249 in words is "sixty-five million, sixty-six thousand, two hundred forty-nine".